ASTROSAT CZTI

Data Quality Report

Orbit 20240611_C09_003T01_9000006298_level2

Creation date: 2024-06-20T22:20:43.648017
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C09_003T01_9000006298cztM0_level2.fits modeM0/AS1C09_003T01_9000006298cztM0_level2_quad_clean.evt
Size (bytes)4,391,979,8405,144,313,600
Size4.1 GB 4.8 GB
Events in quadrant A25,586,25831,500,682
Events in quadrant B25,076,04231,876,687
Events in quadrant C25,820,57030,229,789
Events in quadrant D21,891,43827,594,151

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06550
B06560
C06560
D06560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018422180
B011657070
C011164100
D013015960

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101770
B0101780
C0101810
D0101780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A505566196043.877634%
B505479133162.634333%
C505889111222.198506%
D505807239744.739753%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 612397 506027 0 0 0.00% 0.00%
B 612397 505794 0 0 0.00% 0.00%
C 612397 506216 0 0 0.00% 0.00%
D 612396 505302 0 0 0.00% 0.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 7 110 20892 8.65 6677 6248 1692.2
A 0 29 19719 7.96 6677 6248 1692.2
A 14 95 19427 7.79 6677 6248 1692.2
B 2 9 24096 13.88 6640 6324 1280.9
B 2 8 19187 10.04 6640 6324 1280.9
B 3 17 18000 9.12 6640 6324 1280.9
C 3 202 20027 7.81 6828 6354 1750.5
C 1 81 19590 7.56 6828 6354 1750.5
C 3 203 19225 7.35 6828 6354 1750.5
D 10 189 16257 6.04 6303 5707 1746.0
D 10 113 16006 5.9 6303 5707 1746.0
D 6 38 15885 5.83 6303 5707 1746.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter